Orel T. Application of electro-influences in the process of magnetite quartzite grinding with the purpose to increase the degree of minerals opening and concentrate quality.

The dissertation is devoted to a question of improving and decline of power-consuming of iron-ore concentrates due to increase of a degree of minerals opening by intensification of grinding with the way of direct current influences. In work influence of electrical exposure on the mechanism of polycrystalline material destruction is investigated. It is shown, that one of methods of increasing of the degree of ore mineral opening is the influence on mineral dislocation arrangement. The electric current passing through mineral formations intensifies movement of dispositions to surfaces of minerals accretion and results to increase of degree of ore grains opening at grinding in ball mill. Electrokinetic fixing of cracks in grined material promotes reduction of power inputs on the process of crystalline solids destruction. Opened minerals are characterized by the best technological and physical-chemical properties. The fundamental design of mill for ore reduction with application of intensifying influences of a direct current is developed. Laboratory research results are confirmed with technological tests on the aggregated continuously working installation.